public function deleteMulti(array $arr_entities)
{
$obj_mapper = $this->createMapper();
$obj_request = $this->setupCommit();
$obj_mutation = $obj_request->mutableDeprecatedMutation();
foreach ($arr_entities as $obj_gds_entity) {
$this->applyNamespace($obj_mapper->configureGoogleKey($obj_mutation->addDelete(), $obj_gds_entity));
}
$this->execute('Commit', $obj_request, new CommitResponse());
$this->obj_schema = null;
return TRUE;
// really?
}